Men are also more adept than women at mentally rotating
three-dimensional shapes on aptitude tests, Kinbote added. "You'd be
surprised how often a university president needs to do this, and at Harvard
the pressure is especially intense." Kinbote estimated that the president
of Harvard spends roughly one-quarter of the working day mentally rotating
complex, hypothetical three-dimensional shapes, "and that's not even
counting all the time he needs to try to figure out why women aren't as
skilled at abstract mathematical thought."
-- Michael Berube